參數(shù)資料
型號(hào): SI2494-A-GM
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 53/70頁(yè)
文件大?。?/td> 0K
描述: IC ISOMODEM 56KBPS 38-QFN
標(biāo)準(zhǔn)包裝: 364
系列: *
Si2494/39
Rev. 1.0
57
28
DCD, D6
Carrier Detect/Data Bit.
Active low carrier detect in serial mode. Bidirectional parallel bus data bit 6 in par-
allel mode.
29
ESC, D5
Escape/Data Bit.
Hardware escape in serial mode. Bidirectional parallel bus data bit 5 in parallel
mode.
30
GPIO24, D4
General Purpose Input Output Bit/Data Bit.
General purpose input output bit 24. Bidirectional parallel bus data bit 4 in parallel
mode.
31
GPIO25, D3
General Purpose Input Output Bit/Data Bit.
General purpose input output bit 25. Bidirectional parallel bus data bit 3 in parallel
mode.
32
GPIO16, D2
General Purpose Input Output Bit/Data Bit.
General purpose input output bit 16. Bidirectional parallel bus data bit 2 in parallel
mode.
33
GPIO17, D1
General Purpose Input Output Bit/Data Bit.
General purpose input output bit 17. Bidirectional parallel bus data bit 1 in parallel
mode.
34
GPIO18, D0
General Purpose Input Output Bit/Data Bit.
General purpose input output bit 18. Bidirectional parallel bus data bit 0 in parallel
mode.
35
INT
Interrupt Output.
Active low interrupt output.
36
CLKIN, XTAL1
Clock Input/Crystal Oscillator Pin.
Provides support for parallel resonant AT cut crystals. A 4.9152 MHz or 32.768
crystal or a 32.768 kHz or 4.9152 or 27 MHz clock on XTAL1 is required.
37
XTALO
Crystal Oscillator Pin.
Serves as the output of the crystal amplifier.
38
NC
No Connect.
Table 16. Si2494/39 Pin Descriptions (Continued)
Pin #
Pin Name
Description
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